'It's Potentially Huge, So We Want to Be Positioned for That Market'

In tiny Luxembourg, ancient castles and churches stand in the view of glistening tower blocks, the modern cathedrals of a financial sector that has benefited from the Grand Duchy's proximity to some of Europe's largest economies.

Now, the small nation of half a million people is seeking to be at the heart of a new trend in global finance: the rising use of China's currency outside its home market.